4 files changed, 45 insertions, 5 deletions
diff --git a/sway/desktop/xdg_shell.c b/sway/desktop/xdg_shell.c
index ea5dcd16..9e914f14 100644
--- a/sway/desktop/xdg_shell.c
+++ b/sway/desktop/xdg_shell.c
@@ -339,6 +339,18 @@ static void handle_request_fullscreen(struct wl_listener *listener, void *data)
 		return;
 	}
 
+	if (e->fullscreen && e->output && e->output->data) {
+		struct sway_output *output = e->output->data;
+		struct sway_workspace *ws = output_get_active_workspace(output);
+		if (ws && !container_is_scratchpad_hidden(view->container)) {
+			if (container_is_floating(view->container)) {
+				workspace_add_floating(ws, view->container);
+			} else {
+				workspace_add_tiling(ws, view->container);
+			}
+		}
+	}
+
 	container_set_fullscreen(view->container, e->fullscreen);
 
 	arrange_root();
@@ -417,7 +429,9 @@ static void handle_map(struct wl_listener *listener, void *data) {
 	}
 
 	view_map(view, view->wlr_xdg_surface->surface,
-		xdg_surface->toplevel->client_pending.fullscreen, csd);
+		xdg_surface->toplevel->client_pending.fullscreen,
+		xdg_surface->toplevel->client_pending.fullscreen_output,
+		csd);
 
 	transaction_commit_dirty();
 
diff --git a/sway/desktop/xdg_shell_v6.c b/sway/desktop/xdg_shell_v6.c
index 7ff4c4de..5ac589cf 100644
--- a/sway/desktop/xdg_shell_v6.c
+++ b/sway/desktop/xdg_shell_v6.c
@@ -339,6 +339,18 @@ static void handle_request_fullscreen(struct wl_listener *listener, void *data)
 		return;
 	}
 
+	if (e->fullscreen && e->output && e->output->data) {
+		struct sway_output *output = e->output->data;
+		struct sway_workspace *ws = output_get_active_workspace(output);
+		if (ws && !container_is_scratchpad_hidden(view->container)) {
+			if (container_is_floating(view->container)) {
+				workspace_add_floating(ws, view->container);
+			} else {
+				workspace_add_tiling(ws, view->container);
+			}
+		}
+	}
+
 	container_set_fullscreen(view->container, e->fullscreen);
 
 	arrange_root();
@@ -411,7 +423,9 @@ static void handle_map(struct wl_listener *listener, void *data) {
 		== WLR_SERVER_DECORATION_MANAGER_MODE_CLIENT;
 
 	view_map(view, view->wlr_xdg_surface_v6->surface,
-		xdg_surface->toplevel->client_pending.fullscreen, csd);
+		xdg_surface->toplevel->client_pending.fullscreen,
+		xdg_surface->toplevel->client_pending.fullscreen_output,
+		csd);
 
 	transaction_commit_dirty();
 
diff --git a/sway/desktop/xwayland.c b/sway/desktop/xwayland.c
index 37d0b986..f6ca8f81 100644
--- a/sway/desktop/xwayland.c
+++ b/sway/desktop/xwayland.c
@@ -415,7 +415,7 @@ static void handle_map(struct wl_listener *listener, void *data) {
 	xwayland_view->commit.notify = handle_commit;
 
 	// Put it back into the tree
-	view_map(view, xsurface->surface, xsurface->fullscreen, false);
+	view_map(view, xsurface->surface, xsurface->fullscreen, NULL, false);
 
 	transaction_commit_dirty();
 }
diff --git a/sway/tree/view.c b/sway/tree/view.c
index 4759c998..2c8839f5 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -561,14 +561,26 @@ static bool should_focus(struct sway_view *view) {
 }
 
 void view_map(struct sway_view *view, struct wlr_surface *wlr_surface,
-			  bool fullscreen, bool decoration) {
+			  bool fullscreen, struct wlr_output *fullscreen_output,
+			  bool decoration) {
 	if (!sway_assert(view->surface == NULL, "cannot map mapped view")) {
 		return;
 	}
 	view->surface = wlr_surface;
 
+	// If there is a request to be opened fullscreen on a specific output, try
+	// to honor that request. Otherwise, fallback to assigns, pid mappings,
+	// focused workspace, etc
+	struct sway_workspace *ws = NULL;
+	if (fullscreen_output && fullscreen_output->data) {
+		struct sway_output *output = fullscreen_output->data;
+		ws = output_get_active_workspace(output);
+	}
+	if (!ws) {
+		ws = select_workspace(view);
+	}
+
 	struct sway_seat *seat = input_manager_current_seat();
-	struct sway_workspace *ws = select_workspace(view);
 	struct sway_node *node = seat_get_focus_inactive(seat, &ws->node);
 	struct sway_container *target_sibling = node->type == N_CONTAINER ?
 		node->sway_container : NULL;